248 lines
8.4 KiB
C++
248 lines
8.4 KiB
C++
/***********************************************************************
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* fmessagebox.h - Widget FMessageBox (a text message window) *
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* *
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* This file is part of the FINAL CUT widget toolkit *
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* *
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* Copyright 2014-2020 Markus Gans *
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* *
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* FINAL CUT is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* FINAL CUT is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this program. If not, see *
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* <http://www.gnu.org/licenses/>. *
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***********************************************************************/
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/* Inheritance diagram
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* ═══════════════════
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*
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* ▕▔▔▔▔▔▔▔▔▔▏ ▕▔▔▔▔▔▔▔▔▔▏
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* ▕ FVTerm ▏ ▕ FObject ▏
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* ▕▁▁▁▁▁▁▁▁▁▏ ▕▁▁▁▁▁▁▁▁▁▏
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* ▲ ▲
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* │ │
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* └─────┬─────┘
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* │
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* ▕▔▔▔▔▔▔▔▔▔▏
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* ▕ FWidget ▏
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* ▕▁▁▁▁▁▁▁▁▁▏
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* ▲
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* │
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* ▕▔▔▔▔▔▔▔▔▔▏
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* ▕ FWindow ▏
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* ▕▁▁▁▁▁▁▁▁▁▏
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* ▲
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* │
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* ▕▔▔▔▔▔▔▔▔▔▏
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* ▕ FDialog ▏
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* ▕▁▁▁▁▁▁▁▁▁▏
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* ▲
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* │
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* ▕▔▔▔▔▔▔▔▔▔▔▔▔▔▏
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* ▕ FMessageBox ▏
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* ▕▁▁▁▁▁▁▁▁▁▁▁▁▁▏
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*/
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#ifndef FMESSAGEBOX_H
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#define FMESSAGEBOX_H
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#if !defined (USE_FINAL_H) && !defined (COMPILE_FINAL_CUT)
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#error "Only <final/final.h> can be included directly."
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#endif
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#include <cstring>
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#include "final/fdialog.h"
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#include "final/fwidgetcolors.h"
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namespace finalcut
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{
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// class forward declaration
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class FButton;
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//----------------------------------------------------------------------
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// class FMessageBox
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//----------------------------------------------------------------------
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class FMessageBox : public FDialog
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{
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public:
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// Enumeration
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enum ButtonType
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{
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Reject = 0,
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Ok = 1,
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Cancel = 2,
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Yes = 3,
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No = 4,
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Abort = 5,
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Retry = 6,
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Ignore = 7
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};
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// Constructors
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explicit FMessageBox (FWidget* = nullptr);
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FMessageBox (const FMessageBox&); // copy constructor
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FMessageBox ( const FString&, const FString&
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, ButtonType, ButtonType, ButtonType
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, FWidget* = nullptr );
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// Destructor
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~FMessageBox() override;
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// copy assignment operator (=)
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FMessageBox& operator = (const FMessageBox&);
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// Accessor
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FString getClassName() const override;
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FString getTitlebarText() const;
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FString getHeadline() const;
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FString getText() const override;
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// Mutator
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void setTitlebarText (const FString&);
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void setHeadline (const FString&);
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bool setCenterText(bool);
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bool setCenterText();
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bool unsetCenterText();
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void setText (const FString&) override;
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// Methods
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template <typename messageType>
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static int info ( FWidget*
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, const FString&
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, const messageType&
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, ButtonType = FMessageBox::Ok
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, ButtonType = FMessageBox::Reject
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, ButtonType = FMessageBox::Reject );
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template <typename messageType>
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static int error ( FWidget*
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, const messageType&
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, ButtonType = FMessageBox::Ok
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, ButtonType = FMessageBox::Reject
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, ButtonType = FMessageBox::Reject );
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protected:
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// Method
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void adjustSize() override;
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// Callback method
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void cb_processClick (ButtonType);
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private:
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// Constants
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static constexpr std::size_t MAX_BUTTONS = 3;
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// Methods
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void init();
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void allocation();
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void deallocation();
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void initCallbacks();
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void calculateDimensions();
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void draw() override;
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void resizeButtons() const;
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void adjustButtons();
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// Data members
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FString headline_text{};
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FString text{};
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FStringList text_components{};
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FButton* button[MAX_BUTTONS]{nullptr};
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std::size_t max_line_width{0};
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FColor emphasis_color{getColorTheme()->dialog_emphasis_fg};
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ButtonType button_digit[MAX_BUTTONS]{FMessageBox::Reject};
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std::size_t num_buttons{0};
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std::size_t text_num_lines{0};
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bool center_text{false};
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};
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// FMessageBox inline functions
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//----------------------------------------------------------------------
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inline FString FMessageBox::getClassName() const
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{ return "FMessageBox"; }
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//----------------------------------------------------------------------
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inline FString FMessageBox::getTitlebarText() const
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{
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const FString& title = FDialog::getText(); // initialize text
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return title;
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}
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//----------------------------------------------------------------------
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inline FString FMessageBox::getHeadline() const
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{ return headline_text; }
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//----------------------------------------------------------------------
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inline FString FMessageBox::getText() const
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{ return text; }
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//----------------------------------------------------------------------
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inline void FMessageBox::setTitlebarText (const FString& txt)
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{ return FDialog::setText(txt); }
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//----------------------------------------------------------------------
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inline bool FMessageBox::setCenterText(bool enable)
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{ return (center_text = enable); }
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//----------------------------------------------------------------------
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inline bool FMessageBox::setCenterText()
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{ return setCenterText(true); }
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//----------------------------------------------------------------------
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inline bool FMessageBox::unsetCenterText()
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{ return setCenterText(false); }
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//----------------------------------------------------------------------
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template <typename messageType>
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int FMessageBox::info ( FWidget* parent
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, const FString& caption
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, const messageType& message
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, ButtonType button0
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, ButtonType button1
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, ButtonType button2 )
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{
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FMessageBox mbox ( caption
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, FString() << message
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, button0, button1, button2
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, parent );
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const int reply = mbox.exec();
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return reply;
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}
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//----------------------------------------------------------------------
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template <typename messageType>
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int FMessageBox::error ( FWidget* parent
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, const messageType& message
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, ButtonType button0
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, ButtonType button1
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, ButtonType button2 )
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{
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const FString caption{"Error message"};
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FMessageBox mbox ( caption
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, FString() << message
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, button0, button1, button2
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, parent );
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FTerm::beep();
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mbox.setHeadline("Warning:");
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mbox.setCenterText();
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const auto& wc = getColorTheme();
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mbox.setForegroundColor(wc->error_box_fg);
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mbox.setBackgroundColor(wc->error_box_bg);
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mbox.emphasis_color = wc->error_box_emphasis_fg;
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const int reply = mbox.exec();
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return reply;
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}
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} // namespace finalcut
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#endif // FMESSAGEBOX_H
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